Hei Guys..
I have change my internet service provider from unifi to maxis home fiber.
I using router asus RT-AC5300 i re-configuration the setting. all internet work fine...
Except my VPN connection PPTP and IPSecVPN..
All this was working before when i using with unifi.. but not work anymore for maxis home fiber.. i use same DDNS setting ...
Maxis is refuse to help for troubleshoot. they suggest me to use back their lousy router...

I found when i using DDNS iplookup.. the IP i got is different with the IP display at my Network Map. I think something is wrong with my maxis modem?


My connection now is phone cable to modem maxis DSL. then from Modem maxis Lan2 to my AC5300 Wan...

I feel like the modem is create first public wan IP... ? any idea guys?

With reference to this topic. I did attempt to do the samething.

I was helping a friend to change her original Maxis router to TP-Link AX5400 which is more powerful. At the same time, I figured out that the phone cannot be used.

1. I asked my friend to call Maxis CS if we can connect the phone to ONU instead of the Maxis router. She (from Maxis CS) said cannot. I asked for the ONU login, she didn't give what I wanted.  She just repeat the PPOE username and password.
The Maxis CS said I can only connect my own custom router after Maxis router eventhough I told her I am very confident that I can use the phone ports in ONU.

She also don't want to give the SIP information. She said she don't know what is SIP.
2. Hence, I asked Maxis CS to give the administrator login for Maxis router. She gave and I found out the SIP details.
3. I found out the login for ONU which is HG8240. I able to create VLAN 822 and obtain IP from DHCP.
4. I able to configure VOIP on POTS 1 using the configuration I copied from old Maxis router. Phone is working.
Lesson: If you are confident with your technical background, go for it and don't believe everything from the CS.